CAJ | 학술논문

目前，许多大功率机组不得不进行快速深度变负荷运行来缓解风电等新能源电力给电网带来的日益增大的调峰压力，机组调节系统的硬件性能面临极大的挑战，导致其故障率急剧增加。发现了一种顺序阀方式下由于调门硬件连接不紧密问题而导致的汽轮机负荷突变故障，并提出了一种基于高调门开关试验的机组负荷突变故障有效诊断方法：当机组实际运行发生故障时，可以快速对故障进行测试诊断，进而有效判断出故障的类别和原因。此外，还给出了典型的具有4个高调门的亚临界300MW机组实际负荷突变故障的诊断案例，突出了本方法的实际应用推广价值。
목전，허다대공솔궤조불득불진행쾌속심도변부하운행래완해풍전등신능원전력급전망대래적일익증대적조봉압력，궤조조절계통적경건성능면림겁대적도전，도치기고장솔급극증가。발현료일충순서벌방식하유우조문경건련접불긴밀문제이도치적기륜궤부하돌변고장，병제출료일충기우고조문개관시험적궤조부하돌변고장유효진단방법：당궤조실제운행발생고장시，가이쾌속대고장진행측시진단，진이유효판단출고장적유별화원인。차외，환급출료전형적구유4개고조문적아림계300MW궤조실제부하돌변고장적진단안례，돌출료본방법적실제응용추엄개치。
At present,many large power units have to operate in variable load condition with rapidity and depth in order to ease the growing peak regulation pressure of daily power grid caused by new energy power liking wind.The hardware of unit regulation system is facing huge challenges,which make failure rate increase sharply.A turbine load mutation fault is found for the tight linking among hardware connection in sequence valve mode.Then an effective diagnosis method is proposed for load mutation fault on the base of the high-profile door switch tests.When faults occur in a running unit,the method can diagnosis rapidly to find the category and reason.In addition,we give a typical diagnosis case of subcritical 300 MW units with 4 high-profile to highlight the practice value of this method.